CSA G40.21 50W/350W

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CSA G40.20/G40.21 50W/350W/50WT CAT 3/ A572 GRADE 50

This grade is normally used for High Steel Strength (HSS) sections, where specific strength requirements are required. Suitable for general welded construction where notch toughness at low temperatures is not a design requirement. This grade comes in category ranges from CAT1 to CAT5 for Charpy performance test.

Mechanical PropertiesMetric
Tensile Strength65 to 95 ksi
Tensile Strength, Yield
50 ksi min

19% min in 8″

22% min in 2″